Chain 420 – 58 links – Dirt bike Pit bike Mini Moto. This chain is suitable for all Dirt bike, A chain of Dirt bike should always be fat and properly tensioned, the elements require control and regular maintenance, under penalty of having to replace the kit chain prematurely. No chain 420*. Number of chain links : 58 chain links. Quick attach included. Color : Black or golden, according to the inward. IMPORTANT : A string of Dirt bike should always be fat and properly tensioned, the elements require control and regular maintenance, under penalty of having to replace the kit chain prematurely. To control the amount of travel of the chain, it is necessary to push it up to the top, and then pull it to its maximum towards the bottom, you should perform this measurement in sitting a person on the seat. In fact, Dirt bike on stand, the squat of the rear suspension is ignored, and you could, again, you end up with a chain too tight the risk that it does break to the passage of a kicker. To tighten the chain, it is necessary to move the rear wheel by beginning to loosen the axis of this wheel. It is then very important to verify the reference points of this axis on the swing arm so that the wheel does not come through when you will make it back. Operate progressively on each of the systems of tension of each side of the wheel. *TIP : You do not know the pitch of your chain, simply measure the thickness of your crown with the help of a vernier caliper. Thickness: 5mm to 6mm : 420 Thickness 7mm to 8mm : not 428 Chain 420 – 58 links – Dirt bike Pit bike Mini Moto